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How to distinguish TPU

Recently, plastic products are more and more in our life. Some plastic is toxic while others is eco-friendly. As we know, TPU is one of eco-friendly plastic and which in different degrees has different property. In contrast, silica gel and synthetic rubber are not as eco-friendly as TPU, though they has similar property.


Here we have some ways to distinguish TPU, silica gel and synthetic rubber.


1. Clear or colored.

2. Has yellow flame, a little explosion, few white smoke when fire. It can also have black smoke when it’s not fully fire sometimes.

3. A little bit fragrance.

4. Range of hardness is 60A-80D.

 Soft matte TPU coated webbing belt for bag strapplastic coated webbing manufacturer

Silica gel:

1. Has bright white flame when fire.

2. A little bit smell and smoke when fire. The residue after fire is white powder.

3. Range of hardness is 10A-90A.

 Silica gel  vs Synthetic rubber

Synthetic rubber:

1. The firing flame is yellow.

2. Smelly when fire.

3. Range of harness is generally 50A-80A.

Ps:The application pictures in this article is from internet.

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